package com.atguigu.springcloud.service;

import cn.hutool.core.util.IdUtil;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixCommand;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixProperty;
import org.springframework.cloud.commons.util.IdUtils;
import org.springframework.stereotype.Service;
import org.springframework.web.bind.annotation.PathVariable;

import java.util.concurrent.TimeUnit;

@Service
public class PaymentService {

    public String paymentInfo_OK(Integer id){
        return "线程池："+Thread.currentThread().getName()+"   paymentInfo_OK:"+id;
    }
    @HystrixCommand(fallbackMethod = "paymentInfo_TimeOutHandler",commandProperties = {
       @HystrixProperty(name = "execution.isolation.thread.timeoutInMilliseconds",value = "5000")
    })
    public String paymentInfo_TimeOut(Integer id){
        int timeNumber = 3;
        try {
            TimeUnit.SECONDS.sleep(timeNumber);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        //int i= 10 / 0;
        return "线程池："
                +Thread.currentThread().getName()+
                "   paymentInfo_TimeOut:"+id
                +"  耗时"+timeNumber+"秒钟："+"O(∩_∩)O哈哈~";
    }
    public String paymentInfo_TimeOutHandler(Integer id){
        return "线程池："
                +Thread.currentThread().getName()+
                "8001系统忙，请稍后再试:"+id
                +"o(╥﹏╥)o";
    }
    //服务熔断
    @HystrixCommand(
            fallbackMethod = "paymentCircuitBreaker_fallback", commandProperties = {
            @HystrixProperty(name = "circuitBreaker.enabled", value = "true"),// 是否开启断路器
            @HystrixProperty(name = "circuitBreaker.requestVolumeThreshold", value = "10"),// 请求次数
            @HystrixProperty(name = "circuitBreaker.sleepWindowInMilliseconds", value = "10000"),// 时间窗口期/时间范文
            @HystrixProperty(name = "circuitBreaker.errorThresholdPercentage", value = "60")// 失败率达到多少后跳闸
    })
    public String paymentCircuitBreaker(@PathVariable("id") Integer id){
        if(id < 0){
            throw new RuntimeException("id 不能为负数");
        }
        String serialNumber = IdUtil.simpleUUID();

        return Thread.currentThread().getName()+"\t调用成功，流水号："+serialNumber;
    }

    public String paymentCircuitBreaker_fallback(@PathVariable("id") Integer id){
        return "id 不能为负数，请稍后重试，o(╥﹏╥)o："+id;
    }
}
